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discourse/script/bulk_import/base.rb

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require "pg"
require "set"
require "redcarpet"
puts "Loading application..."
require_relative "../../config/environment"
module BulkImport; end
class BulkImport::Base
NOW ||= "now()".freeze
PRIVATE_OFFSET ||= 2**30
def initialize
db = ActiveRecord::Base.connection_config
@encoder = PG::TextEncoder::CopyRow.new
@raw_connection = PG.connect(dbname: db[:database], host: db[:host_names]&.first, port: db[:port])
@markdown = Redcarpet::Markdown.new(
Redcarpet::Render::HTML,
fenced_code_blocks: true,
autolink: true
)
end
def run
puts "Starting..."
preload_i18n
fix_highest_post_numbers
load_imported_ids
load_indexes
execute
fix_primary_keys
puts "Done!"
end
def preload_i18n
puts "Preloading I18n..."
I18n.locale = ENV.fetch("LOCALE") { "en" }.to_sym
I18n.t("test")
ActiveSupport::Inflector.transliterate("test")
end
def fix_highest_post_numbers
puts "Fixing highest post numbers..."
@raw_connection.exec <<-SQL
WITH X AS (
SELECT topic_id
, COALESCE(MAX(post_number), 0) max_post_number
FROM posts
WHERE deleted_at IS NULL
GROUP BY topic_id
)
UPDATE topics
SET highest_post_number = X.max_post_number
FROM X
WHERE id = X.topic_id
AND highest_post_number <> X.max_post_number
SQL
end
def load_imported_ids
puts "Loading imported group ids..."
@groups = GroupCustomField.where(name: "import_id").pluck(:value, :group_id).to_h
@last_imported_group_id = @groups.keys.map(&:to_i).max || -1
puts "Loading imported user ids..."
@users = UserCustomField.where(name: "import_id").pluck(:value, :user_id).to_h
@last_imported_user_id = @users.keys.map(&:to_i).max || -1
puts "Loading imported category ids..."
@categories = CategoryCustomField.where(name: "import_id").pluck(:value, :category_id).to_h
@last_imported_category_id = @categories.keys.map(&:to_i).max || -1
puts "Loading imported topic ids..."
@topics = TopicCustomField.where(name: "import_id").pluck(:value, :topic_id).to_h
imported_topic_ids = @topics.keys.map(&:to_i)
@last_imported_topic_id = imported_topic_ids.select { |id| id < PRIVATE_OFFSET }.max || -1
@last_imported_private_topic_id = imported_topic_ids.select { |id| id > PRIVATE_OFFSET }.max || (PRIVATE_OFFSET - 1)
puts "Loading imported post ids..."
@posts = PostCustomField.where(name: "import_id").pluck(:value, :post_id).to_h
imported_post_ids = @posts.keys.map(&:to_i)
@last_imported_post_id = imported_post_ids.select { |id| id < PRIVATE_OFFSET }.max || -1
@last_imported_private_post_id = imported_post_ids.select { |id| id > PRIVATE_OFFSET }.max || (PRIVATE_OFFSET - 1)
end
def load_indexes
puts "Loading groups indexes..."
@last_group_id = Group.unscoped.maximum(:id)
@group_names = Group.unscoped.pluck(:name).map(&:downcase).to_set
puts "Loading users indexes..."
@last_user_id = User.unscoped.maximum(:id)
@last_user_email_id = UserEmail.unscoped.maximum(:id)
@emails = User.unscoped.joins(:user_emails).pluck(:"user_emails.email").to_set
@usernames_lower = User.unscoped.pluck(:username_lower).to_set
@mapped_usernames = UserCustomField.joins(:user).where(name: "import_username").pluck("user_custom_fields.value", "users.username").to_h
puts "Loading categories indexes..."
@last_category_id = Category.unscoped.maximum(:id)
@category_names = Category.unscoped.pluck(:parent_category_id, :name).map { |pci, name| "#{pci}-#{name}" }.to_set
puts "Loading topics indexes..."
@last_topic_id = Topic.unscoped.maximum(:id)
@highest_post_number_by_topic_id = Topic.unscoped.pluck(:id, :highest_post_number).to_h
puts "Loading posts indexes..."
@last_post_id = Post.unscoped.maximum(:id)
@post_number_by_post_id = Post.unscoped.pluck(:id, :post_number).to_h
@topic_id_by_post_id = Post.unscoped.pluck(:id, :topic_id).to_h
end
def execute
raise NotImplementedError
end
def fix_primary_keys
puts "Updating primary key sequences..."
@raw_connection.exec("SELECT setval('#{Group.sequence_name}', #{@last_group_id})")
@raw_connection.exec("SELECT setval('#{User.sequence_name}', #{@last_user_id})")
@raw_connection.exec("SELECT setval('#{UserEmail.sequence_name}', #{@last_user_email_id})")
@raw_connection.exec("SELECT setval('#{Category.sequence_name}', #{@last_category_id})")
@raw_connection.exec("SELECT setval('#{Topic.sequence_name}', #{@last_topic_id})")
@raw_connection.exec("SELECT setval('#{Post.sequence_name}', #{@last_post_id})")
end
def group_id_from_imported_id(id); @groups[id.to_s]; end
def user_id_from_imported_id(id); @users[id.to_s]; end
def category_id_from_imported_id(id); @categories[id.to_s]; end
def topic_id_from_imported_id(id); @topics[id.to_s]; end
def post_id_from_imported_id(id); @posts[id.to_s]; end
def post_number_from_imported_id(id); @post_number_by_post_id[post_id_from_imported_id(id)]; end
def topic_id_from_imported_post_id(id); @topic_id_by_post_id[post_id_from_imported_id(id)]; end
GROUP_COLUMNS ||= %i{
id name title bio_raw bio_cooked created_at updated_at
}
USER_COLUMNS ||= %i{
id username username_lower name active trust_level admin moderator
date_of_birth ip_address registration_ip_address primary_group_id
suspended_at suspended_till last_emailed_at created_at updated_at
}
USER_EMAIL_COLUMNS ||= %i{
id user_id email primary created_at updated_at
}
USER_STAT_COLUMNS ||= %i{
user_id topics_entered time_read days_visited posts_read_count
likes_given likes_received topic_reply_count new_since read_faq
first_post_created_at post_count topic_count bounce_score
reset_bounce_score_after
}
USER_PROFILE_COLUMNS ||= %i{
user_id location website bio_raw bio_cooked views
}
GROUP_USER_COLUMNS ||= %i{
group_id user_id created_at updated_at
}
CATEGORY_COLUMNS ||= %i{
id name name_lower slug user_id description position parent_category_id
created_at updated_at
}
TOPIC_COLUMNS ||= %i{
id archetype title fancy_title slug user_id last_post_user_id category_id
visible closed pinned_at views created_at bumped_at updated_at
}
POST_COLUMNS ||= %i{
id user_id last_editor_id topic_id post_number sort_order reply_to_post_number
like_count raw cooked hidden word_count created_at last_version_at updated_at
}
TOPIC_ALLOWED_USER_COLUMNS ||= %i{
topic_id user_id created_at updated_at
}
def create_groups(rows, &block); create_records(rows, "group", GROUP_COLUMNS, &block); end
def create_users(rows, &block)
@imported_usernames = {}
create_records(rows, "user", USER_COLUMNS, &block)
create_custom_fields("user", "username", @imported_usernames.keys) do |username|
{
record_id: @imported_usernames[username],
value: username,
}
end
end
def create_user_emails(rows, &block) create_records(rows, "user_email", USER_EMAIL_COLUMNS, &block); end
def create_user_stats(rows, &block) create_records(rows, "user_stat", USER_STAT_COLUMNS, &block); end
def create_user_profiles(rows, &block); create_records(rows, "user_profile", USER_PROFILE_COLUMNS, &block); end
def create_group_users(rows, &block); create_records(rows, "group_user", GROUP_USER_COLUMNS, &block); end
def create_categories(rows, &block); create_records(rows, "category", CATEGORY_COLUMNS, &block); end
def create_topics(rows, &block); create_records(rows, "topic", TOPIC_COLUMNS, &block); end
def create_posts(rows, &block); create_records(rows, "post", POST_COLUMNS, &block); end
def create_topic_allowed_users(rows, &block); create_records(rows, "topic_allowed_user", TOPIC_ALLOWED_USER_COLUMNS, &block); end
def process_group(group)
@groups[group[:imported_id].to_s] = group[:id] = @last_group_id += 1
group[:name] = fix_name(group[:name])
unless @group_names.add?(group[:name].downcase)
group_name = group[:name] + "_1"
group_name.next! until @group_names.add?(group_name.downcase)
group[:name] = group_name
end
group[:title] = group[:title].scrub.strip.presence
group[:bio_raw] = group[:bio_raw].scrub.strip.presence
group[:bio_cooked] = pre_cook(group[:bio_raw]) if group[:bio_raw].present?
group[:created_at] ||= NOW
group[:updated_at] ||= group[:created_at]
group
end
def process_user(user)
@users[user[:imported_id].to_s] = user[:id] = @last_user_id += 1
imported_username = user[:username].dup
user[:username] = fix_name(user[:username]).presence || random_username
if user[:username] != imported_username
@imported_usernames[imported_username] = user[:id]
@mapped_usernames[imported_username] = user[:username]
end
# unique username_lower
unless @usernames_lower.add?(user[:username].downcase)
username = user[:username] + "_1"
username.next! until @usernames_lower.add?(username.downcase)
user[:username] = username
end
user[:username_lower] = user[:username].downcase
user[:email] ||= random_email
user[:email].downcase!
# unique email
user[:email] = random_email until user[:email] =~ EmailValidator.email_regex && @emails.add?(user[:email])
user[:trust_level] ||= TrustLevel[1]
user[:active] = true unless user.has_key?(:active)
user[:admin] ||= false
user[:moderator] ||= false
user[:last_emailed_at] ||= NOW
user[:created_at] ||= NOW
user[:updated_at] ||= user[:created_at]
user
end
def process_user_email(user_email)
user_email[:id] = @last_user_email_id += 1;
user_email[:user_id] = @users[user_email[:imported_user_id].to_s]
user_email[:primary] = true
user_email[:created_at] ||= NOW
user_email[:updated_at] ||= user_email[:created_at]
user_email[:email] ||= random_email
user_email[:email].downcase!
# unique email
user_email[:email] = random_email until user_email[:email] =~ EmailValidator.email_regex && @emails.add?(user_email[:email])
user_email
end
def process_user_stat(user_stat)
user_stat[:user_id] = @users[user_stat[:imported_user_id].to_s]
user_stat[:topic_reply_count] = user_stat[:post_count] - user_stat[:topic_count]
user_stat[:topics_entered] ||= 0
user_stat[:time_read] ||= 0
user_stat[:days_visited] ||= 0
user_stat[:posts_read_count] ||= 0
user_stat[:likes_given] ||= 0
user_stat[:likes_received] ||= 0
user_stat[:topic_reply_count] ||= 0
user_stat[:new_since] ||= NOW
user_stat[:post_count] ||= 0
user_stat[:topic_count] ||= 0
user_stat[:bounce_score] ||= 0
user_stat
end
def process_user_profile(user_profile)
user_profile[:bio_raw] = (user_profile[:bio_raw].presence || "").scrub.strip.presence
user_profile[:bio_cooked] = pre_cook(user_profile[:bio_raw]) if user_profile[:bio_raw].present?
user_profile
end
def process_group_user(group_user)
group_user[:created_at] = NOW
group_user[:updated_at] = NOW
group_user
end
def process_category(category)
category[:id] ||= @last_category_id += 1
@categories[category[:imported_id].to_s] ||= category[:id]
category[:name] = category[:name][0...50].scrub.strip
# TODO: unique name
category[:name_lower] = category[:name].downcase
category[:slug] ||= Slug.ascii_generator(category[:name_lower])
category[:description] = (category[:description] || "").scrub.strip.presence
category[:user_id] ||= Discourse::SYSTEM_USER_ID
category[:created_at] ||= NOW
category[:updated_at] ||= category[:created_at]
category
end
def process_topic(topic)
@topics[topic[:imported_id].to_s] = topic[:id] = @last_topic_id += 1
topic[:archetype] ||= Archetype.default
topic[:title] = topic[:title][0...255].scrub.strip
topic[:fancy_title] ||= pre_fancy(topic[:title])
topic[:slug] ||= Slug.ascii_generator(topic[:title])
topic[:user_id] ||= Discourse::SYSTEM_USER_ID
topic[:last_post_user_id] ||= topic[:user_id]
topic[:category_id] ||= -1 if topic[:archetype] != Archetype.private_message
topic[:visible] = true unless topic.has_key?(:visible)
topic[:closed] ||= false
topic[:views] ||= 0
topic[:created_at] ||= NOW
topic[:bumped_at] ||= topic[:created_at]
topic[:updated_at] ||= topic[:created_at]
topic
end
def process_post(post)
@posts[post[:imported_id].to_s] = post[:id] = @last_post_id += 1
post[:user_id] ||= Discourse::SYSTEM_USER_ID
post[:last_editor_id] = post[:user_id]
@highest_post_number_by_topic_id[post[:topic_id]] ||= 0
post[:post_number] = @highest_post_number_by_topic_id[post[:topic_id]] += 1
post[:sort_order] = post[:post_number]
@post_number_by_post_id[post[:id]] = post[:post_number]
@topic_id_by_post_id[post[:id]] = post[:topic_id]
post[:raw] = (post[:raw] || "").scrub.strip.presence || "<Empty imported post>"
post[:raw] = process_raw post[:raw]
post[:like_count] ||= 0
post[:cooked] = pre_cook post[:raw]
post[:hidden] ||= false
post[:word_count] = post[:raw].scan(/[[:word:]]+/).size
post[:created_at] ||= NOW
post[:last_version_at] = post[:created_at]
post[:updated_at] ||= post[:created_at]
post
end
def process_topic_allowed_user(topic_allowed_user)
topic_allowed_user[:created_at] = NOW
topic_allowed_user[:updated_at] = NOW
topic_allowed_user
end
def process_raw(raw)
# fix whitespaces
raw.gsub!(/(\\r)?\\n/, "\n")
raw.gsub!("\\t", "\t")
# [HTML]...[/HTML]
raw.gsub!(/\[HTML\]/i, "\n\n```html\n")
raw.gsub!(/\[\/HTML\]/i, "\n```\n\n")
# [PHP]...[/PHP]
raw.gsub!(/\[PHP\]/i, "\n\n```php\n")
raw.gsub!(/\[\/PHP\]/i, "\n```\n\n")
# [HIGHLIGHT="..."]
raw.gsub!(/\[HIGHLIGHT="?(\w+)"?\]/i) { "\n\n```#{$1.downcase}\n" }
# [CODE]...[/CODE]
# [HIGHLIGHT]...[/HIGHLIGHT]
raw.gsub!(/\[\/?CODE\]/i, "\n\n```\n\n")
raw.gsub!(/\[\/?HIGHLIGHT\]/i, "\n\n```\n\n")
# [SAMP]...[/SAMP]
raw.gsub!(/\[\/?SAMP\]/i, "`")
# replace all chevrons with HTML entities
# /!\ must be done /!\
# - AFTER the "code" processing
# - BEFORE the "quote" processing
raw.gsub!(/`([^`]+?)`/im) { "`" + $1.gsub("<", "\u2603") + "`" }
raw.gsub!("<", "&lt;")
raw.gsub!("\u2603", "<")
raw.gsub!(/`([^`]+?)`/im) { "`" + $1.gsub(">", "\u2603") + "`" }
raw.gsub!(">", "&gt;")
raw.gsub!("\u2603", ">")
raw.gsub!(/\[\/?I\]/i, "*")
raw.gsub!(/\[\/?B\]/i, "**")
raw.gsub!(/\[\/?U\]/i, "")
raw.gsub!(/\[\/?RED\]/i, "")
raw.gsub!(/\[\/?BLUE\]/i, "")
raw.gsub!(/\[AUTEUR\].+?\[\/AUTEUR\]/im, "")
raw.gsub!(/\[VOIRMSG\].+?\[\/VOIRMSG\]/im, "")
raw.gsub!(/\[PSEUDOID\].+?\[\/PSEUDOID\]/im, "")
# [IMG]...[/IMG]
raw.gsub!(/(?:\s*\[IMG\]\s*)+(.+?)(?:\s*\[\/IMG\]\s*)+/im) { "\n\n#{$1}\n\n" }
# [URL=...]...[/URL]
raw.gsub!(/\[URL="?(.+?)"?\](.+?)\[\/URL\]/im) { "[#{$2.strip}](#{$1})" }
# [URL]...[/URL]
# [MP3]...[/MP3]
raw.gsub!(/\[\/?URL\]/i, "")
raw.gsub!(/\[\/?MP3\]/i, "")
# [FONT=blah] and [COLOR=blah]
raw.gsub!(/\[FONT=.*?\](.*?)\[\/FONT\]/im, "\\1")
raw.gsub!(/\[COLOR=.*?\](.*?)\[\/COLOR\]/im, "\\1")
raw.gsub!(/\[SIZE=.*?\](.*?)\[\/SIZE\]/im, "\\1")
raw.gsub!(/\[H=.*?\](.*?)\[\/H\]/im, "\\1")
# [CENTER]...[/CENTER]
raw.gsub!(/\[CENTER\](.*?)\[\/CENTER\]/im, "\\1")
# [INDENT]...[/INDENT]
raw.gsub!(/\[INDENT\](.*?)\[\/INDENT\]/im, "\\1")
raw.gsub!(/\[TABLE\](.*?)\[\/TABLE\]/im, "\\1")
raw.gsub!(/\[TR\](.*?)\[\/TR\]/im, "\\1")
raw.gsub!(/\[TD\](.*?)\[\/TD\]/im, "\\1")
raw.gsub!(/\[TD="?.*?"?\](.*?)\[\/TD\]/im, "\\1")
# [QUOTE]...[/QUOTE]
raw.gsub!(/\[QUOTE\](.+?)\[\/QUOTE\]/im) { |quote|
quote.gsub!(/\[QUOTE\](.+?)\[\/QUOTE\]/im) { "\n#{$1}\n" }
quote.gsub!(/\n(.+?)/) { "\n> #{$1}" }
}
# [QUOTE=<username>;<postid>]...[/QUOTE]
raw.gsub!(/\[QUOTE=([^;]+);(\d+)\](.+?)\[\/QUOTE\]/im) do
imported_username, imported_postid, quote = $1, $2, $3
username = @mapped_usernames[imported_username] || imported_username
post_id = post_id_from_imported_id(imported_postid)
post_number = @post_number_by_post_id[post_id]
topic_id = @topic_id_by_post_id[post_id]
if post_number && topic_id
"\n[quote=\"#{username}, post:#{post_number}, topic:#{topic_id}\"]\n#{quote}\n[/quote]"
else
"\n[quote=\"#{username}\"]\n#{quote}\n[/quote]\n"
end
end
# [YOUTUBE]<id>[/YOUTUBE]
raw.gsub!(/\[YOUTUBE\](.+?)\[\/YOUTUBE\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" }
raw.gsub!(/\[DAILYMOTION\](.+?)\[\/DAILYMOTION\]/i) { "\nhttps://www.dailymotion.com/video/#{$1}\n" }
# [VIDEO=youtube;<id>]...[/VIDEO]
raw.gsub!(/\[VIDEO=YOUTUBE;([^\]]+)\].*?\[\/VIDEO\]/i) { "\nhttps://www.youtube.com/watch?v=#{$1}\n" }
raw.gsub!(/\[VIDEO=DAILYMOTION;([^\]]+)\].*?\[\/VIDEO\]/i) { "\nhttps://www.dailymotion.com/video/#{$1}\n" }
# [SPOILER=Some hidden stuff]SPOILER HERE!![/SPOILER]
raw.gsub!(/\[SPOILER="?(.+?)"?\](.+?)\[\/SPOILER\]/im) { "\n#{$1}\n[spoiler]#{$2}[/spoiler]\n" }
raw
end
def create_records(rows, name, columns)
start = Time.now
imported_ids = []
process_method_name = "process_#{name}"
sql = "COPY #{name.pluralize} (#{columns.map { |c| "\"#{c}\"" }.join(",")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
rows.each do |row|
mapped = yield(row)
next unless mapped
processed = send(process_method_name, mapped)
imported_ids << mapped[:imported_id] unless mapped[:imported_id].nil?
imported_ids |= mapped[:imported_ids] unless mapped[:imported_ids].nil?
@raw_connection.put_copy_data columns.map { |c| processed[c] }
print "\r%7d - %6d/sec".freeze % [imported_ids.size, imported_ids.size.to_f / (Time.now - start)] if imported_ids.size % 5000 == 0
end
end
if imported_ids.size > 0
print "\r%7d - %6d/sec".freeze % [imported_ids.size, imported_ids.size.to_f / (Time.now - start)]
puts
end
id_mapping_method_name = "#{name}_id_from_imported_id".freeze
return unless respond_to?(id_mapping_method_name)
create_custom_fields(name, "id", imported_ids) do |imported_id|
{
record_id: send(id_mapping_method_name, imported_id),
value: imported_id,
}
end
end
def create_custom_fields(table, name, rows)
name = "import_#{name}"
sql = "COPY #{table}_custom_fields (#{table}_id, name, value, created_at, updated_at) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
rows.each do |row|
cf = yield row
next unless cf
@raw_connection.put_copy_data [cf[:record_id], name, cf[:value], NOW, NOW]
end
end
end
def fix_name(name)
return if name.blank?
name.scrub!
name = ActiveSupport::Inflector.transliterate(name)
name.gsub!(/[^\w.-]+/, "_")
name.gsub!(/^\W+/, "")
name.gsub!(/[^A-Za-z0-9]+$/, "")
name.gsub!(/([-_.]{2,})/) { $1.first }
name.strip!
name
end
def random_username
"Anonymous_#{SecureRandom.hex}"
end
def random_email
"#{SecureRandom.hex}@ema.il"
end
def pre_cook(raw)
cooked = raw
# Convert YouTube URLs to lazyYT DOMs before being transformed into links
cooked.gsub!(/\nhttps\:\/\/www.youtube.com\/watch\?v=(\w+)\n/) do
video_id = $1
result = <<-HTML
<div class="lazyYT" data-youtube-id="#{video_id}" data-width="480" data-height="270" data-parameters="feature=oembed&amp;wmode=opaque"></div>
HTML
result.strip
end
cooked = @markdown.render(cooked).scrub.strip
cooked.gsub!(/\[QUOTE="?([^,"]+)(?:, post:(\d+), topic:(\d+))?"?\](.+?)\[\/QUOTE\]/im) do
username, post_id, topic_id = $1, $2, $3
quote = @markdown.render($4.presence || "").scrub.strip
if post_id.present? && topic_id.present?
<<-HTML
<aside class="quote" data-post="#{post_id}" data-topic="#{topic_id}">
<div class="title">#{username}:</div>
<blockquote>#{quote}</blockquote>
</aside>
HTML
else
<<-HTML
<aside class="quote">
<div class="title">#{username}:</div>
<blockquote>#{quote}</blockquote>
</aside>
HTML
end
end
cooked.scrub.strip
end
def pre_fancy(title)
Redcarpet::Render::SmartyPants.render(ERB::Util.html_escape(title)).scrub.strip
end
end
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